Research On High Density Electrical Detection Technology And Its Engineering Application

Electric exploration as a common geophysical exploration method,often in practical engineering to be used.The high-density electrical method is part of the electrical exploration method,which has an important role in urban engineering,geological engineering,pipeline engineering and archaeological work,as opposed to the characteristics of the common exploration method.With its own characteristics to achieve a good effect.There are many high-density electrical test devices,such as: Wen Na device,differential device,dipole device,temperature device.Through the previous attempts,the Winner and dipole devices fully reflect its advantages and applicability in the process of high-density electrical detection.In this paper,the main application of high-density electrical method is the Wen Na device,And here on the Wen Na device research also appears to be very meaningful.The core content of this paper is: the first is the high-density electrical method forward calculation,the second is the high-density electrical method of inversion imaging.In this paper,the method used in the forward calculation is a finite difference method,which can be used to mesh the solution region,and the differential equation needs to be solved into a differential equation group.Inversion imaging mainly uses the special software to carry out the work of the high-density electrical data,and then according to the needs of the data processing and terrain correction,and finally through the inversion of the profile,drawing out the resist inversion imaging color profile.In this paper,the validity and feasibility of the inversion method are verified by combining forward and inversion.Research on high density electrical methods This paper has carried out the following aspects:Firstly,the background and development of high density electrical method are expounded,and then the basic principle and working method of high density electrical method are briefly summarized.Based on the previous work results and combined with their own practical experience,the working methods of high density electrical field data collection are studied,and the detailed description is made in three stages: preparation stage,test stage and acquisition stage.Secondly,the system elaborates the contents of data processing and analysis of high density electrical data,including the process of removing dead pixels,data stitching,terrain correction and so on,the process of dataprocessing and the analysis and interpretation of data And so made a more detailed introduction.The basic principle and the finite difference method of high density electrical method are introduced.The difference equation is used to solve the potential caused by the anomalous field.Then,the total potential is obtained by adding the normal field and the abnormal field.Through a two-dimensional forward calculation algorithm to achieve the calculation of forward calculation and get the corresponding forward profile.This paper points out the main devices and the inversion imaging methods and regularity of high density electrical method in this paper.Based on the simulation study of three different models,the inversion of high and low impedance anomalies The Finally,the data processing methods adopted in this paper are analyzed and explained,and the application effect of high density electrical method is illustrated by two concrete engineering examples.The inversion pattern of high density electrical method is studied and the corresponding inversion profile,Which provides the theoretical basis and reference experience for the development and progress of the work of high density electric power,but also complements the achievements and shortcomings of this paper.